The mole fraction of each component in polycrylonitrile material.
The mole fraction of each component in polystrene material.
The mole fraction of each component in polybutadlene material.
Answer to Problem 72AAP
The mole fraction of each component in polycrylonitrile material is
The mole fraction of each component in polystrene material is
The mole fraction of each component in polybutadlene material is
Explanation of Solution
Show the bonding structure of the polyacryonitrile, polybutadlene, and polystyrene as:
Express the mole fraction of polyacrylonitrile.
Here the number of moles of polystyrene is
Express the mole fraction of polybutadlene.
Express the mole fraction of polystyrene.
Conclusion:
The average molecular mass of the polyacrylonitrile is
The average molecular mass of the polybutadlene is
The average molecular mass of the polystyrene is
Calculate the number of moles of polyacrylonitrile of 100 g of copolymer.
Calculate the number of moles of polybutadlene of 100 g of copolymer.
Calculate the number of moles of polystyrene of 100 g of copolymer.
Substitute
Thus, the mole fraction of each component in polycrylonitrile material is
Substitute
Thus, the mole fraction of each component in polybutalene material is
Substitute
Thus, the mole fraction of each component in polystrene material is
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Chapter 10 Solutions
Foundations of Materials Science and Engineering
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